caso vs crasso, What's the Difference?

Which to use

“caso” is a conjunction and “crasso” is an adjective - they look or sound alike but fill different roles in a sentence.

#181
“caso” frequency rank: #39,078
“crasso” frequency rank: 39259
confusion score

Side-by-Side Comparison

Feature	caso	crasso
Definition	na hipótese de; se	espesso

Where the spellings diverge

Shared letters are muted; the letters that actually set caso and crasso apart are highlighted. They share 4 letters in sequence, which is exactly why the eye skips the difference.

4 ch

caso

6 ch

crasso

Spelling & Dictionary Insight

These two trip readers on the page rather than in the ear: caso is /ˈka.zu/ while crasso is /ˈkɾa.su/. Spoken aloud the problem disappears. In writing it persists, because they differ by 2 letter(s) in length, and the parts of speech differ too (conjunction vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 39259, derived from the frequency rank of both members and their visual similarity.

caso is recorded at frequency rank #181, classified as aconj, pronounced /ˈka.zu/. crasso is at rank #39,078, tagged as anadj, pronounced /ˈkɾa.su/.

Glosses for this pair are partially populated in our dataset, but the full side-by-side definitions above should still guide you to the right choice.

With a confusion score of 39259, this pair ranks #27,043 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of caso vs crasso

Shared letters: acos. Private to "caso": -. Private to "crasso": r.

"caso" · 4 letters · shape CVCV · "crasso" · 6 letters · shape CCVCCV

Known mistypes of this pair

caso ← acso · casso · ccaso · csao
crasso ← carsso · ccrasso · craso · crasos · crrasso · crsaso · rcasso

Frequency comparison

caso#181

crasso#39,078

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "caso" and "crasso" be used interchangeably?

No - they are not even the same part of speech. "caso" is a conjunction and "crasso" an adjective, so a sentence built for one is usually ungrammatical with the other.

Which is more common, "caso" or "crasso"?

"caso" is the more common of the two: it sits at frequency rank #181 in our Portuguese list, against #39,078 for "crasso". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Remembering caso vs crasso

The fastest way to pick the right one every time.

Check the role first: if you need a conjunction, it's “caso”; for an adjective, it's “crasso”.
See each word in full, definition, IPA, etymology and its other confusables. Full “caso” entry
Browse more pairs most likely to be confused. Most confusable